Upsetting-machine.



E. RORIVE.

UPSETTING MACHINE.

APPLIGATION FILED APR. 8, 191a,

Patented June 2, 1914.

w w h E H Jggr m W ITNESSES; 1N VENTOR ERNEST womvz, BY HIS nrrolmflgUNITED STATES PATENT OFFICE.

ERNEST RORIVE, 0F BRUSSELS, BELGIUM.

UPSETTING-MAGHINE.

To all whom it may concern Be it known that 1, Banner Rourvn, sub jectof the Belgian King, residing at Brussels Belgium, have invented a newand use ful Upsetting-Machine; and I do hereby declare the following tobe a full, clear, and exact description of the same.

This invention relates to an upsetting machine to form the shoulder ringand tapering butt-end of jumpers or mining tools, wheel-axles and soforth.

The method is substantially characterized in that the extremity of therod or tool in one operation has its handle end tapered and formed witha shoulder ring by means of a compressor piston or plunger moved to andfro through the intervention of a crank, a helicoidal wheel or any othersuitable mechanism. The portion immediately behind the shoulder ring,after same has been formed, is pressed in a bearing fitted with a sleevehaving a tapering bore or any other suitable bore so that the portionadjoining the shoulder ring, during the compressing operation, shallassume the form of the interior of the sleeve. At a suitable distancefrom the said bearing there is provided a clamping vise which can bemoved relatively to the former by means of an eccentric, a wheel-trainand a hand lever.

According to the present invention the space within which the shoulderring is to be formed is incased so that the air in such space can beheated in order to keep up the temperature of the work piece as long aspossible.

An embodiment of an apparatus for carrying out the operation is shown inthe accompanying drawings by way of example.

Figure 1 is a longitudinal section of the apparatus with the plunger inits starting position. Fig. 2 is a side elevation of the apparatusshowing the plunger in ts forward position. Fig. 3 is a vertical sectionthrough the vise or gripping jaws drawn to a larger scale. Fig. 4 is across-section through the bearing. Fig. 5 shows the handle end of a toolin the finished condition.

A table or bed 1, which may preferably be made of channel iron, isfitted with cheeks 2 in which is mounted a helicoidal. wheel 3 keyed toa crankshaft 4. To the underside of the table are fixed bearings 5 forcarrying a worm 6 which engages the wheel 3 and which can be rotated bymeans of a handle 7. The handle 7 may be replaced by a beltSpecification of Letters Patent.

Application filed April 8, 1913.

Patented J line 2, 1914.

Serial No. 759,643.

pulley. To the crank pin 8 is attached a connectlng rod 9 which ispin-jointed at 11 to the plunger 10. The latter moves in a guide 12 andthe extremity of said plunger 1s formed with a cavity 13 correspondingto the form to be given to the handle end of the tool or to any otherwork piece. In front of the guide 12 at a suitable distance apart is alaterally slotted bearing 14 which is fixed to the table 1 by screws 15and is fitted with a divided sleeve 16 having a tapered bore, so thatthe tool or the like can be readily withdrawn therefrom after theoperation. The two parts of the sleeve 16 are connected together by pins17 for insuring the correct assemblage of said parts. The lateral slotof the bearing 14 insures a rapid fixing and releasing of the sleeve 16.

The rod introduced into the bearing is firmly retained but for furthersecurity the rod is gripped in a vise or clamping jaws attached toclamps 1S and 19 respectively. For this purpose, the clamping jaws 20are mounted on pins 21 controlled by toothed wheels 22, 23 and a handlever 24. A portion of the pins 21 is eccentric so that the jaws can beset at different distances apart by turning the pins 21. The jaws havesemicircular gripping recesses 27.

The two toothed wheels 22 and 23 (Fig. 3) disposed beneath the tableserve to regulate the eccentric positions of the pins and consequentlythat of the jaws 20. The latter are controlled by a hand-lever 24. Thetable 1 is preferably mounted upon a sup port or base 25 in order toallow the whole machine to be readily operated.

The operation is as follows: The bar of iron or steel which is used formaking the jumpers and the like is heated to red heat at one end of adefinite length. It is then passed into the sleeve of the bearing 14from the front of the machine. The screw 15 is tightened so as to securethe rod firmly in he bearing 14. The two clamping jaws 20 of thetightening device are then tightened against the rod and handle 7 isturned so that the crank shaft rotates clockwise in the direction whichcauses the connecting rod 9 as also the plunger to advance. The taperingsocket 13 acts on the end of the rod and forces it to assume the formshown in Fig. 5.

When the end of the rod butts against the end of the tapering socket 13the superfluous metal is driven outwardly and thus forms,

in the space between the guides 12 and the bearing 14: a shoulder whichproduces the shoulder ring of the jumper. The free space referred to hasa cover 26 to prevent cold air entering. As the internal end of thesleeve 16 is tapered, the end portion of the rod will take the sameshape and thereby become stronger at the portion which ordinarily breaksoff.

The crank shaft 4 can obviously be replaced by an eccentric and thetightening bearing may be modified without altering the nature of theinvention. The butt end may likewise remain cylindrical if preferred,

I claim:

draw the block together and cause the split sleeve to firmly hold thearticle.

In testimony whereof, I have signed my name to this specification inthepresence of 25 two subscribing witnesses.

ERNEST RORIVE. lVitnesses:

ED. BRIGHAM- VON KILY, CHAS. Roy NASMITH.

Copies otthil patent may be obtained for five cents each, by addressingthe Comminionet o2 Patentl,

Washington, D. G.

